Genes matter, lifestyle matters more
Although it might seem like it, genetics are not pre-destiny. The age-old debate continues of nature versus nurture. When it comes to preventative care and longevity, it is revisited once again.
There are genes which are correlated to a shorter life span. It is important to know this. People with "short lifespan" genes had a 21% higher risk of death compared to those with "long lifespan" genes. But people with unfavourable lifestyle habits had a 78% higher risk of death compared to those with healthy habits. Genes matter but our lifestyle matters more.
A large study of over 350,000 people from the UK Biobank has shown us that while we can't change our genetic code, we can significantly influence our longevity through daily choices. Unfortunately, the worst combination of poor genes and unhealthy habits doubles your risk (2.04 times the risk of death compared to those with good genes and healthy habits).
Think of it this way: your genes might deal you certain cards, but you decide how to play them. Even more encouraging, the study found no special interaction between bad genes and bad habits. This means healthy lifestyle choices can help everyone, regardless of our genetic makeup.
Start with one habit today (get adequate sleep, regular physical activity, a healthy diet), and gradually build your way to a longer, healthier life. Lastly, tell one other person. Because when we tell everybody else about our commitment to health, it keeps us honest. And when we're honest with ourselves about our habits, we can truly begin to change them.
Lastly, tell one other person. Because when we tell everybody else about our commitment to health, it keeps us honest. And when we're honest with ourselves about our habits, we can truly begin to change them.
Bian Z, Wang L, Fan R, et al Genetic predisposition, modifiable lifestyles, and their joint effects on human lifespan: evidence from multiple cohort studies. BMJ Evidence-Based Medicine 2024;29:255-263.